specifying an i18n resource file for a plugin does not work

I've defined an i18n configuration file for an application plugin.

<resource type="i18n" name="i18n" location="DirectorySynchronizeBundle"/>

The resource bundle key are not working when accessed through the JSP, plugins framework or actions inside of Crowd.

It appears the Google Apps plugin has the same problem. All of the resource reference are loaded from BaseAction.properties